100 lines
2.3 KiB
JavaScript
100 lines
2.3 KiB
JavaScript
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let tokenizer = require('postcss/lib/tokenize')
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let Comment = require('postcss/lib/comment')
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let Parser = require('postcss/lib/parser')
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class SafeParser extends Parser {
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createTokenizer() {
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this.tokenizer = tokenizer(this.input, { ignoreErrors: true })
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}
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comment(token) {
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let node = new Comment()
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this.init(node, token[2])
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let pos =
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this.input.fromOffset(token[3]) ||
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this.input.fromOffset(this.input.css.length - 1)
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node.source.end = {
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offset: token[3],
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line: pos.line,
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column: pos.col
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}
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let text = token[1].slice(2)
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if (text.slice(-2) === '*/') text = text.slice(0, -2)
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if (/^\s*$/.test(text)) {
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node.text = ''
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node.raws.left = text
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node.raws.right = ''
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} else {
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let match = text.match(/^(\s*)([^]*\S)(\s*)$/)
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node.text = match[2]
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node.raws.left = match[1]
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node.raws.right = match[3]
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}
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}
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decl(tokens) {
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if (tokens.length > 1 && tokens.some(i => i[0] === 'word')) {
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super.decl(tokens)
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}
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}
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unclosedBracket() {}
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unknownWord(tokens) {
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this.spaces += tokens.map(i => i[1]).join('')
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}
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unexpectedClose() {
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this.current.raws.after += '}'
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}
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doubleColon() {}
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unnamedAtrule(node) {
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node.name = ''
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}
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precheckMissedSemicolon(tokens) {
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let colon = this.colon(tokens)
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if (colon === false) return
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let nextStart, prevEnd
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for (nextStart = colon - 1; nextStart >= 0; nextStart--) {
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if (tokens[nextStart][0] === 'word') break
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}
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if (nextStart === 0) return
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for (prevEnd = nextStart - 1; prevEnd >= 0; prevEnd--) {
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if (tokens[prevEnd][0] !== 'space') {
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prevEnd += 1
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break
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}
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}
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let other = tokens.slice(nextStart)
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let spaces = tokens.slice(prevEnd, nextStart)
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tokens.splice(prevEnd, tokens.length - prevEnd)
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this.spaces = spaces.map(i => i[1]).join('')
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this.decl(other)
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}
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checkMissedSemicolon() {}
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endFile() {
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if (this.current.nodes && this.current.nodes.length) {
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this.current.raws.semicolon = this.semicolon
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}
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this.current.raws.after = (this.current.raws.after || '') + this.spaces
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while (this.current.parent) {
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this.current = this.current.parent
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this.current.raws.after = ''
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}
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}
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}
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module.exports = SafeParser
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